Probing devices to guess BIOS drives. This may take a long time.
Unknown partition table signature
sed: can't read /media/cab64688-2d97-4bbd-9f32-7bc0badb40a8_/boot/grub/device.map: No such file or directory
grep: /media/cab64688-2d97-4bbd-9f32-7bc0badb40a8_/boot/grub/device.map: No such file or directory
/dev/sda does not have any corresponding BIOS drive.